Rainier Arms 45/90 Degree Selector Compatible Lower Receiver

Rainier Arms has just introduced their newest forged lower receiver compatible with both 45 degree and 90 degree safety selectors. Their lowers are made to mil-spec and machined from forged 7075 aluminum. Also features a tension screw, to help reduce any play between the lower and upper receivers, and a flared magwell to aid in quicker reloads.